My 2008 post includes an excerpt from The Algebraist — it’s worth a read. Banks begins with the consensus response to the simulation hypothesis — “a difference that made no difference wasn’t a difference to be much bothered about, and one might as well get on with (what appeared to be) life.” I’m not sure the hypothesis is totally irrelevant though; it is one answer to the Fermi Paradox.

PPS. I’ve been lately thinking about the other odd aspects of Oldness. Such as realizing I’m supposed to be the sober and silent sage in meetings whose primary duty is to do introductions and conclude with expressions of appreciation. Most unfairly, for someone who never missed a nap during meetings and classes, I’m not allowed to fall asleep any more.